Warrants (Details) - Warrant [Member] - Common Stock [Member] shares in Thousands	Sep. 30, 2015 $ / shares shares
Issuance of Convertible Debenture [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	1,215
Issuance of Convertible Debenture [Member] | Vesting Date, Various 2009 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	276
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 16.26
Issuance of Convertible Debenture [Member] | Vesting Date, Various 2013 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	86
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 13.92
Issuance of Convertible Debenture [Member] | Vesting Date, Various 2010 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	385
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 13.25
Issuance of Convertible Debenture [Member] | Vesting Date, May 2011 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	48
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 16.26
Issuance of Convertible Debenture [Member] | Vesting Date, August 2011 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	32
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 13.25
Issuance of Convertible Debenture [Member] | Vesting Date, September 2011 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	49
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 15.00
Issuance of Convertible Debenture [Member] | Vesting Date, Various 2012 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	319
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 15.00
Mortgage Renewal [Member] | Vesting Date, August 2011 [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding	20
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 15.00